1-[1-(1-(1/2)(1/2))(1/2)]^2 = 39/64
my answer: 39/64
所有跟帖:
•
formula are ...,the denometer can't be 64.
-jinjing-
♀
(0 bytes)
()
06/19/2010 postreply
19:25:24
•
correct
-wfmi-
♂
(0 bytes)
()
06/28/2010 postreply
11:48:50